Brent Murphy
60 lines
2.0 KiB
TOML
60 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2020/08/31"
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maturity = "production"
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updated_date = "2021/03/04"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies modifications to a Key Vault in Azure. The Key Vault is a service that safeguards encryption keys and secrets
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like certificates, connection strings, and passwords. Because this data is sensitive and business critical, access to
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key vaults should be secured to allow only authorized applications and users.
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"""
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false_positives = [
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"""
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Key vault modifications may be done by a system or network administrator. Verify whether the username, hostname,
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and/or resource name should be making changes in your environment. Key vault modifications from unfamiliar users or
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hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
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""",
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]
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from = "now-25m"
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index = ["filebeat-*", "logs-azure*"]
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language = "kuery"
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license = "Elastic License v2"
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name = "Azure Key Vault Modified"
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note = "The Azure Filebeat module must be enabled to use this rule."
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references = [
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"https://docs.microsoft.com/en-us/azure/key-vault/general/basic-concepts",
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"https://docs.microsoft.com/en-us/azure/key-vault/general/secure-your-key-vault",
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]
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risk_score = 47
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rule_id = "792dd7a6-7e00-4a0a-8a9a-a7c24720b5ec"
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severity = "medium"
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tags = ["Elastic", "Cloud", "Azure", "Continuous Monitoring", "SecOps", "Data Protection"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.dataset:azure.activitylogs and azure.activitylogs.operation_name:"MICROSOFT.KEYVAULT/VAULTS/WRITE" and event.outcome:(Success or success)
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1552"
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name = "Unsecured Credentials"
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reference = "https://attack.mitre.org/techniques/T1552/"
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[[rule.threat.technique.subtechnique]]
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id = "T1552.001"
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name = "Credentials In Files"
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reference = "https://attack.mitre.org/techniques/T1552/001/"
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[rule.threat.tactic]
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id = "TA0006"
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name = "Credential Access"
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reference = "https://attack.mitre.org/tactics/TA0006/"
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